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uPVC Windows with Integrated Grill & Mesh

German-Powered Systems by Ascendia

Complete 3-track uPVC window systems with integrated security grill, mosquito mesh, GI steel reinforcement, and premium German hardware — engineered for long-term performance.

Book a Design Consultation Call: +91 95890 15575
10-Year

Complete System Warranty

20-Year

Renolit Surface Warranty

German Hardware

G-U & Siegenia

CNC Fabricated

Not Site-Cut

What Ascendia Delivers
The Complete Grill-and-Mesh System

Most window companies sell you a frame and a grill. Ascendia engineers a system — one in which the grill, the mesh, the sealing architecture, the locking mechanism, and the surface finish all work together as a single assembly.
Three Independent Layers — Glass, Grill, Mesh

In an Ascendia 3-track sliding window, each layer operates independently on its own sash track: the glass panel, the security grill, and the mosquito mesh. Open the glass. Lock the grill. Close the mesh. All simultaneously, in any combination, without one layer interfering with another.

The grill channel is not retrofitted. It is machined into the uPVC profile during CNC fabrication — which means the tolerances that keep the grill operating cleanly for 20 years are set before the frame leaves our workshop, not adjusted on installation day.

Every Ascendia window with grill uses G-U (Gretsch-Unitas, Germany) multi-point locking hardware. When the handle is turned, the mechanism engages the sash simultaneously at multiple points across the frame perimeter. The security grill is the secondary barrier. The G-U lock is the primary one. Specifying both — correctly, together — is the difference between a security system and a security appearance.
Inside every Ascendia profile: ISO-tested GI cold-formed steel reinforcement at 1–1.5mm. This is what keeps the frame square under India’s monsoon wind loads and prevents the grill channel from shifting over years of thermal cycling. Frame rigidity and grill alignment are not separate specifications — they are the same engineering decision.
The profile surface — including the grill channel frame — is finished with Renolit UV-stable technology. In India’s high-UV climate, cheaper profiles yellow, lose surface integrity, and develop loose grill-channel fits within a few years. Renolit technology eliminates this failure mode, backed by our 20-year surface weathering warranty.
Before the mesh performs its function, the EPDM double gasket on each sash seals the frame perimeter — closing the window against monsoon wind pressure, fine dust, and insect ingress at the structural level. This is the first barrier. The mesh is the second. Both are part of every Ascendia system.

Our uPVC Window Models
Grill and Mesh Configuration

Ascendia’s sliding window range is built across two engineered series. Each model is fabricated to the specifications below. Grill material and grade are confirmed during the site survey based on your floor level, climate exposure, and security requirement.

GlideShield Max

Enhanced 62 Series

Ascendia’s flagship grill-and-mesh sliding window with 62mm profile depth, 2.4mm wall thickness, 2,400 Pa wind-load rating, integrated mosquito mesh, and full 3-track grill capability. Ideal for ground-floor rooms, coastal homes, and high-wind environments.

TerraGlide 180

Enhanced 62 Series

Designed for wide openings, balconies, and panoramic views. Features a 2,400 Pa wind-load rating, integrated mesh, premium G-U/Yale hardware, and options for standard grills or invisible stainless-steel cable grills.

GlideShield+

Essentials 50 Series

A practical solution for upper-floor apartments with integrated mosquito mesh, 50mm profile, 1,500 Pa wind-load rating, Kinlong hardware, and Pristine White finish. Perfect where ventilation and insect protection are the priority.

ModelSeriesProfileIntegrated MeshWind LoadHardwareGrill ReadyBest For
GlideShield MaxEnhanced 6262mm / 2.4mm wallYes — Standard2,400 PaG-U / Yale3-track inbuiltGround floor, coastal, high-wind applications
TerraGlide 180Enhanced 6262mm / 2.4mm wallYes — Standard2,400 PaG-U / Yale3-track / Invisible GrillWide spans, balconies, sea-facing elevations
GlideShield+Essentials 5050mm / 2.4mm wallYes — Standard1,500 PaKinlong3-track inbuiltUpper floors and apartments
GlideMaster 180Enhanced 6262mm / 2.4mm wallAdd-on2,400 PaG-U / YaleOn SpecificationPremium residential and custom grill projects
GlideProEssentials 5050mm / 2.4mm wallAdd-on1,500 PaKinlongOn SpecificationStandard residential and upper-floor applications

What We Offer

Ascendia specifies and fabricates grills as part of the window system — not as aftermarket additions. Grill material is selected during the site survey based on floor level, location, climate exposure, and security requirements.

SS 304 Standard Bar Grill

High Security

Excellent corrosion resistance for coastal cities, humid climates, and ground-floor applications.

SS 316 Marine Grade Grill

Premium Coastal Protection

Designed for direct sea-facing homes where maximum corrosion resistance is required.

Powder-Coated MS Grill

Maximum Security

Ideal for inland India, custom patterns, and projects requiring enhanced protection.

Aluminium Grill

Rust-Free Solution

Modern appearance with low maintenance. Recommended for upper floors and balconies.

Invisible Grill

View-Priority Design

High-tensile stainless steel cable system that preserves views while providing safety.

Laser-Cut Designer Grill

Architectural Finish

Decorative solutions for entrance foyers, feature walls, and luxury residential projects.

What We Offer

The right mesh specification depends on UV exposure, humidity levels, and location. Ascendia engineers the correct mesh type during the specification stage.

Fiberglass Mesh

4–10 Year Lifespan

Suitable for inland India, shaded openings, and upper-floor applications.

Stainless Steel Mesh (SS304)

20+ Year Lifespan

The recommended specification for coastal India and high-humidity environments.

Aluminium Mesh

10–15 Year Lifespan

Ideal for high-humidity inland locations and mid-floor residential projects.

Pet-Resistant Mesh

Heavy-Duty Protection

Designed for homes with pets and high-contact window openings.

Watch Ascendia uPVC Windows in Action

Our uPVC Window Models
Grill and Mesh Configuration

2-Track System

Glass + Mesh

Grill Integration:
External clip-on only (not system integrated)

Independent Operation:
❌ Grill cannot operate independently

Best Application:
Upper-floor apartments where a security grill is not required.

→
3-Track System

Glass + Grill + Mesh

Grill Integration:
Inbuilt and CNC-machined into the profile.

Independent Operation:
✅ Glass, grill and mesh operate independently.

Best Application:
Ground-floor homes, coastal projects, security + ventilation requirements.

→
4-Track System

2 Glass + Grill + Mesh

Grill Integration:
Inbuilt and CNC-machined into the profile.

Independent Operation:
✅ All four panels operate independently.

Best Application:
Balconies, living rooms, wide spans and large openings.

Important Engineering Note

An external clip-on grill on a 2-track frame is not equivalent to an inbuilt 3-track system. A clip-on grill sits outside the frame and cannot operate independently. In many configurations, it can be removed using ordinary hand tools. Ascendia fabricates every grill directly into the window system during CNC production, creating a true integrated security solution rather than an aftermarket attachment.

Book An Appointment With Ascendia Experts

Our engineer visits your site, specifies the right grill configuration and window system for your home, and delivers a complete itemised quotation — with absolutely no obligation.

✓ Free Technical Assessment    | ✓ Detailed Itemised Quote    | ✓ Professional Installation Guidance

How We Deliver Your System

Every Ascendia installation follows a proven 5-stage process to ensure long-term performance, precision engineering, and flawless installation.

STAGE 01

Site Survey & Technical Assessment

Detailed inspection covering wall construction, opening condition, wind exposure, floor height, ventilation requirements, and system specification planning.

1
2
STAGE 02

System Design & Specification

Selection of profile series, glazing, grill type, mesh, hardware, reinforcement, finish, and complete engineered quotation.

STAGE 03

CNC Precision Fabrication

Profiles are CNC-cut, reinforced, assembled, and quality checked in a controlled workshop environment before dispatch.

3
4
STAGE 04

On-Site Installation & Calibration

Frames are fixed, sealed, aligned, and calibrated. Every sash is tested for smooth operation and proper locking.

STAGE 05

Quality Inspection & Warranty Handover

Final verification, homeowner walkthrough, maintenance guidance, and complete warranty documentation handover.

5

Ascendia vs. The Market

Two uPVC window quotes may look similar on paper, but the engineering behind them can be completely different. Here’s what the specification difference looks like in practice.

Specification Ascendia Grill System Generic Market Offering
Fabrication Method ✓ CNC-machined profiles, factory fabricated ✕ Site-cut profiles with manual adjustment
Grill Integration ✓ Inbuilt 3-track system machined into profile ✕ External clip-on grill attached after installation
Grill Operation ✓ Fully independent sliding operation ✕ Fixed or manually removable grill
Frame Reinforcement ✓ ISO-tested GI steel reinforcement ✕ Thin insert or no reinforcement
Locking System ✓ G-U multi-point locking ✕ Single-point latch
Sealing ✓ EPDM double-gasket sealing ✕ Single or partial gasket sealing
Surface Finish ✓ Renolit UV-stable surface with 20-year warranty ✕ Standard coating with expected fading
Installation Team ✓ Ascendia-trained in-house technicians ✕ Subcontracted labour teams
Warranty ✓ 10-Year System + 20-Year Surface Warranty ✕ Typically 1–5 years, installation excluded

uPVC Windows with Grill and Mesh in India

The right question is not: what is the price per square foot? It is: what is inside the price? Two windows at the same per-square-foot number can be entirely different engineering — and deliver entirely different 20-year performance.
ConfigurationWindow TypeGrillMeshWhat You Are Paying For
2-Track + Mesh OnlySlidingNone — Mesh OnlyFiberglassPest exclusion only. No security grill. Suitable for upper-floor applications.
2-Track + External Clip-On GrillSlidingClip-On MS GrillFiberglassGrill is not system-integrated and cannot operate independently.
3-Track + Inbuilt MS Grill + MeshSlidingInbuilt Powder-Coated MSFiberglass / AluminiumSecurity and ventilation independence. Recommended for inland India.
3-Track + Inbuilt SS304 + SS MeshSlidingInbuilt Stainless Steel 304Stainless SteelCoastal-grade system. Recommended for coastal India.
3-Track + SS316 + SS MeshSlidingInbuilt SS316 Marine GradeStainless SteelDirect sea-facing specification with long-term coastal durability.
3-Track + Invisible Grill + SS MeshSlidingHigh-Tensile SS CableStainless SteelPremium solution combining security with unobstructed views.
4-Track Wide SpanWide SlidingInbuilt MS or SS304SS / AluminiumIdeal for balconies, living rooms, and large openings.
Casement + Interior Grill + MeshCasementInterior-Fixed SS GrillSS / FiberglassCorrect specification for outward-opening casement windows.
Any quote that does not specify grill material and grade, mesh type, track count (inbuilt vs. external), profile series, hardware brand, and warranty terms is an incomplete quote. You cannot compare it against another quote, and you cannot verify what you are buying until the window has been through its first monsoon season.

Frequently Asked Questions
uPVC Windows with Grill and Mesh

What is the difference between a grill and a mosquito mesh on a uPVC window?
A grill is a rigid metal frame — stainless steel, mild steel, or aluminium — that provides a physical security barrier against forced entry. A mosquito mesh is a fine woven screen that allows air to flow while blocking insects. They solve different problems. In a correctly engineered 3-track sliding system, they operate on separate sash tracks, independently of each other and of the glass panel. Both are required for any ground-floor opening where security, ventilation, and insect exclusion are all priorities.
A 3-track sliding window uses three independent sash tracks — one for the glass panel, one for the security grill, one for the mosquito mesh. Each panel operates completely independently. Open the glass, lock the grill, close the mesh — in any combination, simultaneously. In Ascendia’s systems, the grill channel is machined into the profile during CNC fabrication, not added as an external clip-on after installation. The tolerances that keep the grill operating cleanly across its 20-year life are set at fabrication.
Market prices range from Rs.350–550 per sq ft for a 2-track with mesh only, Rs.600–900 for a 3-track inbuilt MS grill with mesh, Rs.750–1,100 for a 3-track SS 304 grill with SS mesh, and Rs.1,000–1,500 for invisible grill configurations. Price varies by grill material, mesh grade, track count, profile series, glazing, and hardware. Always request a fully itemised specification — grill material grade, mesh type, profile series, hardware brand, and warranty terms must all be stated.
For coastal cities and high-humidity zones across India — Mumbai, Chennai, Kochi, Vizag, Goa, Kolkata coastal — stainless steel (SS 304 at minimum; SS 316 for direct sea-facing elevations) is the engineering recommendation. For inland India where direct salt-air exposure is not a factor, powder-coated mild steel provides the highest security rating with manageable maintenance. Aluminium grills are the specification for upper floors where weight and rust-freedom are priorities over maximum security rating.
Yes — materially so, in both security and operational performance. An inbuilt grill operates on a sash track precision-machined into the profile at the fabrication stage. It slides independently, sits within the frame’s engineered tolerances, and cannot be removed from outside. An external clip-on grill attaches to the face of an installed window after the fact. It cannot operate independently for ventilation, it sits outside the frame tolerances, and in most configurations it can be removed from outside with basic hand tools. It was not designed as a primary security element.
Yes — when the system is correctly specified. This means: stainless steel grill (SS 304 minimum; SS 316 for direct sea-facing elevations), stainless steel mosquito mesh, EPDM double-gasket sealing on all sashes, ISO-tested GI steel reinforcement inside the profile, and CNC-fabricated frames with machined grill channels. A poorly specified system in coastal conditions fails visibly within 3–5 years. A correctly specified Ascendia coastal system carries a 10-year complete system warranty and a 20-year Renolit surface weathering warranty.
In a 3-track system, no. The grill operates on its own independent track and slides fully open when maximum ventilation is required — it imposes no restriction on air flow when open. In a 2-track system with a fixed external grill, yes — the grill is permanently in position and reduces the effective ventilation opening. This is one of the principal engineering reasons Ascendia specifies 3-track inbuilt systems for any application where both security and full ventilation are required.
An external clip-on grill can be fitted to most existing uPVC frames after installation. It is not the functional equivalent of an inbuilt grill — it cannot be independently operated, it sits on the frame exterior, and it can typically be removed from outside. For new window installations, always specify grill integration from the design stage. Ascendia includes the grill channel in the profile fabrication — which means it cannot be added later without replacing the frame. Specify it correctly from the start.
Three main types: fiberglass mesh (economy grade — appropriate for inland India, upper floors, shaded exposures; 4–6 years lifespan in coastal/high-UV environments); stainless steel mesh (SS 304 — the durable specification for coastal India and high-humidity zones; 20+ year lifespan); and aluminium mesh (mid-grade — rust-free, good for high-humidity inland zones; 12–15 year lifespan inland). Pet-resistant heavy-duty mesh is also available for homes with animals that use window sills. Three main types: fiberglass mesh (economy grade — appropriate for inland India, upper floors, shaded exposures; 4–6 years lifespan in coastal/high-UV environments); stainless steel mesh (SS 304 — the durable specification for coastal India and high-humidity zones; 20+ year lifespan); and aluminium mesh (mid-grade — rust-free, good for high-humidity inland zones; 12–15 year lifespan inland). Pet-resistant heavy-duty mesh is also available for homes with animals that use window sills.
A correctly specified Ascendia system — Enhanced 62 Series with GI reinforcement, EPDM double-gasket sealing, stainless steel grill, and G-U hardware — is designed for a 20–40 year service life. Ascendia backs this with a 10-year complete system warranty and a 20-year Renolit surface weathering warranty. The grill material determines the maintenance obligation within that lifespan: stainless steel grills (SS 304 or SS 316) require very low maintenance; powder-coated MS grills require annual inspection in coastal zones.
The key difference is grill placement. Sliding windows use a 3-track system where the grill is a panel on its own sash track — sliding on the same plane as the glass. Casement windows open outward on hinges, which means any exterior grill either blocks the window from opening or must itself be hinged and openable from outside — eliminating its security function. The correct specification for a casement window with grill is an interior-fixed or hinged-interior grill on the room side. Multi-point locking (G-U hardware in Ascendia’s systems) is the primary security layer on a casement window.
Six categories: standard horizontal or vertical bar grills in stainless steel (the functional security specification for most residential applications); powder-coated MS grills in geometric, jali, traditional, and modern linear patterns (maximum design flexibility, highest security rating); aluminium grills in powder-coated finishes (lightweight, upper-floor specification); invisible grills using high-tensile stainless steel cables (view-preserved security for high-rise and sea-facing elevations); laser-cut designer panels in aluminium or MS (architectural feature specification for living rooms and entrance foyers); and sliding security grills for wide commercial openings. At Ascendia, all grills are specified and fabricated as part of the window system during the site survey — not selected post-installation from a catalogue.

Ready to Specify Your System?
Book a Free Site Visit

Ascendia does not sell windows from a catalogue. We engineer window systems from a site survey.

Before any measurement is taken, before any material is ordered, a trained Ascendia engineer visits your site to understand your building — the opening sizes, the floor level, the wind exposure, the climate zone, the security requirement, and how each room will use its windows every day. That assessment produces a complete system specification: every component defined, every material grade confirmed, every trade-off made explicit — before a single frame enters fabrication.

What you receive at the end of that process is a window system engineered for your home. Not a catalogue product. Not a standard configuration with an invoice. A system.

Call us or submit your project details. We respond within one business day. Our engineer visits at a time that suits you — no obligation, no generic quote, no pressure.
Book a Free Site Visit
At Ascendia, we specialize in premium window and profile solutions
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